Nothing will ever be as immersive as our own eyesight. When we look through a camera, each lens gives us a different angle that is always smaller than our field of vision.

Diffraction glasses give you the opportunity to see the world in a whole new way. When you wear a pair of diffraction glasses, you are suddenly reminded of just how remarkable––and visually stunning––the properties of light can be. These glasses are simple, affordable tools that you can use to further your studies of physics, or to simply enhance an awesome light show at a music festival.

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How do we make diffraction grating glasses? In our diffraction glasses, the gratings we use for our lenses are specifically designed to generate a visual cascade of colors. Each diffraction grating lens contains tens of thousands of tiny lines through with the light passes and diffracts to create the “rainbow symphony” you see!

In fact, technology like virtual reality uses a ton of camera equipment to give us a full immersive experience. The wider the field of view, the more realistic the experience.

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Our classic diffraction grating glasses make the study of light and color fun for students of every age, featuring 13,500 lines per inch, double axis holographic diffraction grating lenses. A more durable but equally colorful option is our popular line of plastic fireworks glasses, the perfect accessory for that next killer concert.

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As we mentioned above, humans FOV is about 170-180 degrees. Video game consoles’ field of view is typically around 60-70 degrees, which is a third of what you’d see in real life. And a PC sits at about 90 degrees. That makes a huge difference. Games that don’t adjust or allow for an FOV adjustment, really changes the whole game, literally. Many gamers find it very frustrating to play without that option.

We’ll get into the specifics of FOV, including some examples and how it’s not the same as depth of field. Let’s start by answering the question, “What does FOV mean?”

To go deeper into lens perspective, know the ins and outs of focal length. The next post explores wide-angle lenses, long-focus lenses, standard angle lenses, and creative uses of manipulating focal length. From compressing space to exaggerating movement, keep reading for more.

In photography, the question is not just about “what” you’re seeing in the image, “how much” you're seeing also matters. To understand the amount of image your camera can capture, you need to understand field of view.

For example, fluorescent lighting will look different than LED lighting, which will appear different than traditional incandescent lighting. In this way, you can actually learn about the different types of light sources in a room by wearing your diffraction grating glasses! You can also experiment with looking at different temperature light bulbs while wearing the glasses or at light sources with different colored bulbs or gels.

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We also offer customization options for many of our best-selling diffraction glasses! Add your brand colors, logo, or other personalized images to our glasses for your next company event, wedding, or party. Simply reach out to our support team and let us take care of the rest.

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Focal length is measured in millimeters and it’s the given name of the lens. It’s the distance from the lens to the sensor. So if you’re shooting with an 8 mm lens, that means your sensor is 8 mm away from your lens. A short focal length like this, means a wider field of view. For more on the relationship between focal length and field of view, see below.

Now that you understand how diffraction grating glasses work, you can experience them for yourself! At Rainbow Symphony, we’ve been helping people discover the wonders of diffraction for over 40 years. Over time, we’ve expanded our collection of diffraction glasses to include various styles, colors, and materials so you’ll always find exactly what you’re looking for.

When light hits these slits, it bends and breaks into its component colors. For white light, this the standard rainbow spectrum of red, orange, yellow, green, blue, indigo, and violet. Depending on the type of lighting source, you may see a different spectrum.

In the study of optics, a diffraction grating is a lens or other component with a specific structure that breaks up light into beams and sends them traveling into different directions.

But we can change lenses and get as close to the real thing as possible. Technology has become so advanced, we’re getting closer to the real thing.

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The main issues with VR technology is the balancing act between needing thicker and heavier lenses that demand less focal distance to increase the field of view with lighter headsets and equipment that don’t cause color aberration and distortion quite like the heavier tech does.

When you put on a pair of diffraction grating glasses, you are essentially placing a diffraction grating in between your eyes and the light sources within your physical environment. The lens of the diffraction glasses contains thousands of tiny slits (the aforementioned “apertures”) that are spaced closely together.

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Anyway, a larger field of view makes gaming more natural. If you can barely see your enemy before they get to you, it doesn’t really make for an enjoyable time.

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In humans, the average field of view is about 170-180 degrees. This is often hard to accomplish through gaming or optical devices. The wider the field of view, the more one can see of that observable world.

Field of view is the extent of the observable world that is seen at a given time either through someone's eyes, on a display screen, or through the viewfinder on a camera. Field of view (FOV) also describes the angle through which one can see that observable world. It refers to the coverage of an entire area, rather than a fixed focal point.

Whether you’re a photographer, videographer, or gamer, getting comfortable with field of view is essential to capture and experience the world around you.

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In photography, changing the field of view is possible simply by changing the lens. In order to capture more of a scene for instance, a wide angle lens might be used. While decreasing the field of view can be done by using a zoom lens or simply moving the camera, depending on what you’re trying to achieve. The smaller the focal length of the lens, the wider the angle or the wider the field of view. So when you change out lenses with varying focal lengths, your field of view will either widen or narrow.

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Other issues like motion sickness can even come into play, with a really low FOV. Although, I would argue if you’re getting motion sickness from video games, maybe you should get outside a bit.

What, exactly, do we mean when we say diffraction? Diffraction occurs when light passes through a narrow aperture or series of apertures along a grating and is subsequently spread out into its various spectral components––often the classic rainbow spectrum with which you’re likely familiar.

Whether you’re a photographer, a video game designer, a filmmaker, or work with VR, thoroughly understanding field of view or (FOV) is your foundation for success. It’s basic optics, and while you likely can assume what it is, let’s quickly go over it and see its importance in photography and the gaming world. So, what is field of view and why does it matter?